[MORAE] Fail/Error more consistently between LLM-assisted Code2amr and claissic Code2amr

[Free-Quarks]

Currently the LLM-assisted fails into the list of responses for each file which are somewhat cryptic. We should pipe more of the error messages forward from the sub-processes.

Initially we will add logging into the returned AMR. Longer term we could return a list with an entry for each file.